Quad channel on 3rd gen Ryzen?

[piratemonkey]

I'm a bit confused on memory channels and them being supported and all that jazz. If I have 4 sticks (what would be considered quad channel I think) of RAM, do I have four channels of bandwidth, or because the CPU doesn't support, only two channels? 

[Guest]

No, two of your sticks are sharing one channel. You can only have two channels with Ryzen.

[Vishera]

Only dual channel

[Kilrah]

Ryzen is dual channel, you'll just have 2 sticks per channel.

[Mateyyy]

Ryzen - dual-channel memory (up to 4 DIMMs)

Ryzen Threadripper - quad-channel (up to 8 DIMMs)

Ryzen Threadripper Pro - eight-channel (up to 16 DIMMs)

[minibois]

4 minutes ago, piratemonkey said:

I'm a bit confused on memory channels and them being supported and all that jazz. If I have 4 sticks (what would be considered quad channel I think) of RAM, do I have four channels of bandwidth, or because the CPU doesn't support, only two channels? 

Quad channel would be four sticks working together, which Ryzen does not support. Ryzen only supports two sticks working together.

Ryzen does support four sticks of memory being installed, which would be two sets of dual channel.

[Skade]

3 minutes ago, minibois said:

Quad channel would be four sticks working together, which Ryzen does not support. Ryzen only supports two sticks working together.

Ryzen does support four sticks of memory being installed, which would be two sets of dual channel.

You can only use 2 sticks (slots: 2 & 4) otherwise it's only gonna read half the ram

Edited August 9, 2020 by Skade
Spelling

[Vishera]

Just now, Skade said:

You can only use 2 sticks (slots: 2 & 4) otherwise it's only gonna read half the ram

?????

@minibois is right

[minibois]

1 minute ago, Skade said:

You can only use 2 sticks (slots: 2 & 4) otherwise it's only gonna read half the ram

You have to explain your stance further, because what you said above does not make sense to me.

Are you saying I wouldn't be able to use slots 1 and 3 for memory at all? That's untrue and would not make sense (why include something one can not use?)

[Haro]

10 hours ago, Skade said:

otherwise it's only gonna read half the ram

what?

 

10 hours ago, piratemonkey said:

do I have four channels of bandwidth, or because the CPU doesn't support, only two channels? 

the cpu physically has 2 memory channels, so four sticks will result in 2 sticks per channel.

TR has 4 memory channels and TR pro has 8.

[Skade]

1 minute ago, minibois said:

You have to explain your stance further, because what you said above does not make sense to me.

Are you saying I wouldn't be able to use slots 1 and 3 for memory at all? That's untrue and would not make sense (why include something one can not use?)

Here's a picture from a reddit post which will explain better.

[Moonzy]

4 minutes ago, minibois said:

(why include something one can not use?)

-flashback to x299 and i5 7640X-

 

this thread made me watch this video

Spoiler

 

not sure if it'll answer OP, but i'll probably learn something about RAM

[Haro]

10 hours ago, Skade said:

Here's a picture from a reddit post which will explain better.

that has nothing to do with what you said.

[Kilrah]

2 minutes ago, Skade said:

Here's a picture from a reddit post which will explain better.

You're not understanding any of it. It says what 2 slots you have to use if you only have 2 sticks, nothing to do with not being able to use 4 sticks.

[minibois]

Just now, Skade said:

Here's a picture from a reddit post which will explain better.

While the information above is true, it's also completely irrelevant to the question asked by OP.

The question by OP is if  they can use four sticks of memory:

15 minutes ago, piratemonkey said:

If I have 4 sticks (what would be considered quad channel I think) of RAM, do I have four channels of bandwidth

So it doesn't matter which banks they decide to put the memory in; since all four will be used anyways.

 

Sure, slots 2 and 4 should be used when using two sticks. When using four, just use all slots.

 

To be clear: Ryzen support 4 sticks of memory, which would be two sets of dual channel (to avoid confusion by the irrelevant info above).

[piratemonkey]

Hey guys, this thread is labelled as hot, my question has been answered. I have my answers, you can go home now

[Guest]

Has anyone told you Ryzen is dual channel?

[Vishera]

Just now, Skade said:

Here's a picture from a reddit post which will explain better.

Spoiler

 

Scratching my head...  What are you trying to say exactly?,

That OP will have trouble applying XMP with 4 dimms populated?,that contradicts what you said earlier:

6 minutes ago, Skade said:

You can only use 2 sticks (slots: 2 & 4) otherwise it's only gonna read half the ram

 

[piratemonkey]

1 minute ago, Den-Fi said:

Has anyone told you Ryzen is dual channel?

The rest of the thread. I just wanted to double check cuz I was kinda confused

[Skade]

3 minutes ago, Den-Fi said:

Has anyone told you Ryzen is dual channel?

Yes

[Skade]

25 minutes ago, piratemonkey said:

I'm a bit confused on memory channels and them being supported and all that jazz. If I have 4 sticks (what would be considered quad channel I think) of RAM, do I have four channels of bandwidth, or because the CPU doesn't support, only two channels? 

I'm very sorry for being confusing. Therefor I'm not gonna respond anymore.